1. What is Stoichiometry?

Stoichiometry is the calculation of relative quantities of reactants and products in chemical reactions. It is based on the law of conservation of mass where the quantity of each element does not change in a chemical reaction.

2. How Does the Calculator Work?

The calculator uses the stoichiometric equation:

Where:

• \( n_{\text{product}} \) — Amount of product (mol)
• \( n_{\text{reactant}} \) — Amount of reactant (mol)
• \( \text{coeff}_{\text{product}} \) — Stoichiometric coefficient of product
• \( \text{coeff}_{\text{reactant}} \) — Stoichiometric coefficient of reactant

Explanation: The equation shows the mole ratio between reactants and products in a balanced chemical equation.

3. Importance of Stoichiometric Calculations

Details: Stoichiometry is essential for predicting product yields, determining limiting reagents, and ensuring proper reactant ratios in chemical reactions.

4. Using the Calculator

Tips: Enter the amount of reactant in moles and the stoichiometric coefficients for both reactant and product. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What are stoichiometric coefficients?
A: These are the numbers written before chemical formulas in a balanced equation, indicating the mole ratio of substances.

Q2: Can I use this for any chemical reaction?
A: Yes, as long as you have a balanced chemical equation and know the coefficients.

Q3: What if my reaction has multiple reactants or products?
A: You'll need to identify the limiting reactant first, then apply the same principle to calculate product amounts.

Q4: Why is the result in moles?
A: Stoichiometry deals with mole ratios. You can convert to grams using molar mass if needed.

Q5: What's the difference between theoretical and actual yield?
A: Theoretical yield is what stoichiometry predicts, while actual yield is what you get in the lab (usually less due to side reactions, losses, etc.).